By offering at least 100 gp in magical materials and a pint of your own blood to your Cauldron, you can obtain a familiar in a similar manner as a sorcerer. You may choose what kind of familiar you obtain and it increases in strength as you do. The familiar behaves in the same way as any other familiar would from another class. You may only have one familiar at a time and if you were to lose your familiar, only then would you be able to replace this blessing.
Special: If you choose to have your familiar attack, it deals an extra 1 Ruinous damage for each 4 levels you possess to a maximum of 5 damage